Ensuring the efficiency of the use of nutrients of grain, protein, vitamin and mineral feeds in the composition of complete feed mixtures in animal husbandry and crop production, as well as the corresponding reduction in the cost of manufacturing of these products, is the relevance of the presented research and prospects for their development. Therefore, the purpose of the study is to substantiate the effective regime parameters for the preparation of premixes of feed mixtures based on the assessment of the energy parameters of the vibration mixing process. This assessment was carried out by comparing the results of applying vibration, blade, and vibroblade technological operations. Under the conditions of low-frequency vibrations, a decrease in the working resistance of the loosened layer of the mixture is observed, which provided the effect of reducing energy consumption in this process. Therefore, in comparison with conventional vibrating mixers have a higher specific productivity of 5-6 times, provide a reduction in the mixing time by 2-3 times, metal consumption – by 17%, energy consumption – by 30%, capital costs for manufacturing – by 18%, and drive power – by 30-35%, which leads to a reduction in total energy consumption by 3-4 times. As a result, the zone of minimal energy consumption was substantiated, in which the reduction of the resistance of the technological medium allowed radically reducing the friction forces during mixing, while ensuring uniform distribution with the concentration of the components of the mixture required by technological requirements. An increase in the oscillation amplitude is accompanied by a quadratic increase in power consumption, which is conditioned by an increase in energy dissipation in the mass of the mixture in the form of heat. The implementation of reasonable operating mixing modes allowed reducing the energy consumption of the proposed vibro-blade mixing by 2.0-2.5 times compared to conventional blade processing. The practical value of these developments includes the use of vibro-blade working bodies and the vibration-free operation of the drive shaft, which, together with the minimisation of energy consumption for the process, reduces dynamic loads on the support units of the developed mixer
Context. The problem of identifying the manifestation of the human factor in the context of utility in maritime transport during emergency situations is considered. The aim of the study is to increase safety in maritime transport by identifying positive and negative human factors, as well as analyzing the behavioral reactions affecting the vessel's passage parameters.Objective. The aim of the work is to determine the approaches and the construction of software tools to identify periods of manifestation of the human factor of the navigators during abnormal situations.Method. The study identified the types of manifestations of the human factor in the form of intuitive (illogical) behavior of the navigator. The dependence of intuitive behavior, as a reaction, on exceeding the detection threshold of perception of service information, is given. It was determined that the distribution of information load among members of the navigation watch will significantly reduce the detection threshold of the navigator at the time of making management decisions. It was established that the detection step is to determine the balance of information effects on the navigator and his individual polar reactions. The cycle of updating the navigator model is determined by analyzing his individual behavior model of previous intellectual activity. A formal description of the space of alternatives and reactions of the navigator in the form of polar groups at the moment of vessel management is proposed. Software has been developed that allows the analysis of the vessel's passage trajectory for collision detection and the identification of periods of occurrence of the detection threshold of the navigator. Analysis of the trajectories made it possible to conclude that before the collision the navigator was in active/passive polar states of action, which directly proportional to the speed of the vessel, which confirms the main hypothesis of the study. As a mathematical tool for solving the problem of classifying individual reactions of the navigator, the factor analysis and a training sample are offered -more than nine typical situations, which make it possible to adequately determine polar reactions according to the principle of utility.Results. In order to confirm the adequacy of the proposed formal-logical approaches, an experiment was conducted using the Trainer Professional 5000 navigation simulator (NTPRO 5000). The results of the experiment, as well as the developed software, made it possible to identify the time periods of the negative human factor manifestation of the navigator caused by the information overload and to determine its individual stimulus factors. At the same time, the moment of occurrence of an extraordinary situation was determined by analyzing the passage trajectory of the vessel by means of processing log files by passing the Bosporus strait location.In addition, an algorithm was developed for the formation of the navigator's model and its updating on the basis of individual periods of the negative manifestation of the...
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